This automatic transmission oil pressure switch is designed to match the appearance and function of the original switch, and is engineered to help monitor fluid pressure in the transmission case on specified vehicles. This part is compatible with the following vehicles. Before purchasing, enter your vehicle trim in the garage tool to confirm fitment. [Chevrolet Silverado 2500 HD Classic: 2007] - [Chevrolet Silverado 2500 HD: 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019] - [Chevrolet Silverado 2500: 2001, 2002, 2003, 2004, 2006, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018] - [Chevrolet Silverado 3500 Classic: 2007] - [Chevrolet Silverado 3500 HD: 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019] - [Chevrolet Silverado 3500: 2001, 2002, 2003, 2004, 2005, 2006] - [GMC Sierra 2500 HD Classic: 2007] - [GMC Sierra 2500 HD: 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019] - [GMC Sierra 2500: 2001, 2002, 2003, 2004] - [GMC Sierra 3500 Classic: 2007] - [GMC Sierra 3500 HD: 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019] - [GMC Sierra 3500: 2001, 2002, 2003, 2004, 2005, 2006]